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o e L. B. PERRY 8va. C. MITGHELL.

FIFTH WHEEL FOR RAILWAY CARS.

No. 605,205. Paten-ted June 7,1898.

7gg-l LEvI R. PERRY AND JAMES MITCHELL, oEL'EwI'sToN, IVIAINEASSIGNoRs or TIIREE-'rwEN'rIETHS To HERBERT E. CHASE, or SAME PLACE.

FIFTH-WHSEEI'.. FOR RAILWAY-CARS.

SPECIFICATION forming part of Lett'ersratent No. 605,205, dateduune 7, 189s. Application Med-September 14*l 1,8971. ,Serial No. 651,613. (No model-l To @ZZ whom tm/ay conccrm.

Be it known that we, LEVI B. PERRY and or pivot connections, the primary object of I the same being to provide a'fifth-wheel for railway-cars which will considerably reduce the friction at this point, and thereby present an easy movement ofthe body upon the trucks in rounding curves, removing the rough jerky zo motions occasioned the undue friction upon the ordinary fifth-wheel.

rl-he present invention contemplates a construction and arrangement of the parts providing a simple, strong, and effective swivel 2 5 for heavy bodies that reduces the friction to a minimum and thoroughly protects the bearing-surfaces from dustor grit.

To the accomplishment of the above object-s and such others as the invention may 3o pertain, the same consists particularly in a ci rcular plate or member having a central opening, an outer depending iiange, and concave recesses in the depressed portion encircling the opening, said recesses being provided centrally with steel bearing-posts, .balls seated within the recesses upon the posts, and an annular retaining-plate through which the balls project, together with a second plate or member having a central opening, a raised central portion, anda circular groove forming a runway for the balls carried by the other plate or Inember. l i

Thefollowing speci'cationfwill give a detail description of the parts constituting the -4 5 invention, and what is claimed as new in the to a railway-car and including 'rub-plates located at the ends of said sill.` Fig. is a sectional view through the two parts of the swivel.

' Fig. 3 isa detail plan view ofthe lower mem- 55 beror plate whichis secured to the truck.

Fig. 4 is an inverted plan view of the upper plate or member with the retaining-plate and balls removed. Fig.4 5 is a sectional view through the rub-plates. Fig. 6 is an inverted 6o plan view of the Vupper member of the rubplates withv the retaining-plate and balls removed. 1

rlhe lprincipal part of the invention, the swivel, is made up practically of two parts A and B, respectively, the part A, which. is attached to the sill of thecar, comprisinga circular plate having a central opening a and a depending annular ilange o near its outer edge, presenting a surrounding web through 7o which the retaining screws or bolts pass in securing the member in place. The annular flange ct forms a depressed surface around the central opening, and within this surface are formed a concentric series of concave recesses a2, said recesses being located between the central opening and depending iiange of the plate or member. `Into the center of each `concaver recess projects a 4bearing post or pin o, which is of hardened' steel and is let into 8o the plate, extendingi-therethrough. These posts form the bearings for antifriction-balls, hereinafter mentioned, and consequently it is contemplated to make the plate a casting,

or it may be a forging.- y The central opening in the plate just described is designed for thel passage of the king-bolt or a pivot-pin.

C designates a series of balls which are placed within the 'concave recesses d2 and held therein by a retainingplate D, having a cor-` 9o responding seriesE-of openings d, throu gh which said balls project slightly beyond the plate. This retaininglplate is" annu lar in shape, the central opening therein registering with the central opening of the main plate or-member, while the'outer edge of said retaining-plate bears against the flange ct', within which it is seated, the iiange depending below 'the plate for the purpose hereinafterspecified. As

shown, the retaining-plate D isheldin place too by machine-screws 'cl,thou gh itis obvious that other fastening means could be employed.

The part B, which forms the runway or lower bcarin g for the balls,is preferably a forg- Azo ing shaped to present a step or circular shoulder b, from which projects a central raised portion Z9', in the upper surface of which is formed a circular groove or runway b2. A central opening b3 extends through the part B and registers with the corresponding opening in the other part ofthe swivel, and when both parts are together ,the raised portion of B fits within the depending flange of A, the latter resting upon the shoulder b and acting' the posts and lower plate or member B, and

as they frictionall y bear against the retainingplate the latter is preferably made of steel. The bearing ends of the posts may be brought to a point and, as they project into the concave recesses, form a small contact-point for the balls. i

The rub-plates, shown in connection with the swivel, when applied to a railway-car are constructed after the manner of said swivel, comprising the two parts E and F, rectangular in shape, one part having a series of concave recesses e, into which project pins or posts c', while the other part, F, has a smooth upper surface. Both parts are provided with projecting ears pierced for the reception of the retaining screws or bolts. Balls G are seated within the concave recesses to bear upon the posts and are held in place by a retainingplate H, having-holes through which the balls project to contact' with the aforesaid bearing-plate. l/Vhen applied, the parts E and F movein opposite directions laterally and prevent wear of the sill and truck of a car in rounding a curve or when a rocking movement is imparted to the car-body.

Having thus described the invention, what is claimed as new, and desired to be secured by Letters Patent, is-

1. A swivel for the purposes set forth, comprising two parts, one having a depending annular flange forming a depressed surface within the same, said surface being provided with a concentric series of concave recesses, and the other part having a central raised portion fitting within the flange; together with balls seated within the recesses of the first-mentioned part to bear upon the raised portion of the last-mentioned part, substantially as shown and described.

2. A swivel for the purposes set forth, comprising two parts having registering central openings'to receive a king-bolt or pivot-pin, one of the parts presenting an annular flange forming a depressed surface surrounding the opening,said surface being provided with concave recesses, balls seated within the concave recesses, and a retaining-plate fitting within the flange and having openings through which the balls project slightly beyond said plate; together with the other part having a central raised portion fitting within the flange and presenting a surface provided with a circular groove or runway, substantially as shown and described.

3. A swivel for the purpose set forth, comprising two circular plates, one having a depending annular flange forming a central depressed portion and surrounding web, the depressed portion being provided with a concentric series of concave recesses, bearing surfaces located in said recesses, balls bearing within the recesses, and a retaining-plate fitting within the flange and having openings through which the balls pass; together with the other plate having a surrounding web and a central raised portion forming a circular shoulder, the upper surface of the raised portion being provided with a circular groove; both of the aforesaid plates having central openings through which passes a king-bolt or pivot-pin, substantially as shown and described.

4. A swivel for the purpose set forth, the combination, of a circular plate having a depending annular shoulder near its outer edge forming a depressed surface surrounding a central opening in the plate, said surface being provided with a concentric series of concave recesses, bearing-posts extending' into said recesses centrally, balls seated within the recesses upon the posts, a retaining-plate fitting within the flanges and having openings through which the balls project slightly beyond said plate, and means for holding the retaining-plate in place; together with a ein cular plate presenting a surrounding web and a central raised portion forming a circular step or shoulder, the upper surface of the raised portion havinga circular groove surrounding a central opening in the plate which registers with the central opening in the other plate, the raised portion of the lastmentioned plate fitting within the annular fiange of the firstmentioned plate, as herein shown and described.

5. 'The rub-plates, for the purpose set forth,

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comprising a member having a series of concave recesses and projecting ears, bearingposts extending into the center of the concave recesses, a retaining-plate having openings through which the balls proj ect.,and means for holding the retaining-plate in place; together with a second member having a plain upper surface and projecting ears, as shown and described.

In testimony whereof we affix our signatures in presence of two witnesses.

LEVI B. PERRY. JAMES C. MITCHELL. Witnesses:

CHAs. A. Mavo, H. E. CHASE.

IZO 

